ResumoO artigo contempla aspectos de uma ampla pesquisa-ação sobre metadisciplina, uma disciplina que se constrói enquanto é ministrada. Em sua totalidade, a pesquisa abrange a confluência da Semiótica, Educação e Design em um cenário de experiências didáticas no curso de Design desde 2014. O aspecto apreciado aqui identifica e analisa os sentidos que o Design agrega à investigação e à educação, em proposições de codesign, metaprojeto, metadesign e HCD (Design centrado no ser humano) por meio de um estudo de caso da metadisciplina em Projeto IV, realizada em 2017. O objetivo é a construção de conhecimentos que consideram repertórios e interesses individuais e propicia a criação de valores coletivos mais equânimes. Como resultado verificamos que os fundamentos do Design aplicados, na pesquisa e na sala de aula, fortalecem a autonomia, a autogestão e a coerência entre o que se estuda e o que se faz.Palavras Chave: pesquisa através do Design; metadisciplina; ensino e aprendizagem.
Abstract
This paper contemplates aspects of a broad action research about metacourse, a course that is constructed while it is administered. In its entirety, this research encompasses the confluence of Semiotic, Education and Design in a scenario of didactic experiences at a Design course since 2014. The aspect valued in this paper identifies and analyzes the meanings of whatDesign adds to the research and education in propositions of codesign, metaproject, metadesign and HCD (Human-Centered Design) through a case study of metacourse in Project IV, held in 2017. The objective is to build knowledge that considers repertoires and individual interests and propiciates the creation of more equitable collective values. As a result, we verified that the foundations of Design applied, in research and in the classroom, strengthen the autonomy, the self-management and the coherence between what is studied and what is done.
Resumo: Este artigo apresenta o modelo teórico e o princípio de funcionamento dos sensores ópticos baseados em grades inscritas em fibras ópticas. Além disso, este trabalho inclui as vantagens e algumas configurações desse tipo de sensor que permitiram a inovação tecnológica em sistemas de monitoramento de diferentes áreas. O artigo contém ainda uma metodologia para criação de sensores baseados em grades em fibras ópticas para monitoramento de parâmetros de um sistema, com intuito de fomentar a investigação científica nos campos em que sua utilização ainda não foi explorada.
Palavras-chave: Sensores Ópticos, Grades em Fibras Ópticas, Investigação Científica.Abstract: This paper presents the theorical model and operating principle of optical sensors based on gratings inscribed in optical fibers. Moreover, this work includes the advantages and some configurations of this type of sensor that allowed technological innovation in monitoring systems of different areas. This paper also contains a methodology for creating optical fiber grating sensors for parameters monitoring of a system, in order to foster scientific research in the fields in which their use has not been explored.
Etched fiber Bragg gratings (EFBGs) have been widely employed for refractive index (RI) measurements that can be used to monitor sugar consumption during the fermentation of alcoholic beverages. EFBGs are obtained by removing the cladding of a fiber Bragg grating, which is traditionally performed by a chemical attack with hydrogen fluoride, an extremely hazardous corrosive substance that causes severe wounds and even death. To overcome such drawbacks, this technical note presents a simple, practical, and low cost method for the diameter reduction of single mode optical fibers by mechanical polishing, employing a small scale computer numerical control device and an ad hoc 3D-printed rod. The sensor probe obtained was tested using sucrose aqueous solutions with RIs between 1.333 and 1.394, measured in an Abbe refractometer. The results show a linear shift of the Bragg wavelength with respect to RI with a correlation of 0.928.
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